It is a sentence that contains both an independent clause and one or more subordinate clauses
Existe uma planilha ou não?
From your knee perspective? You can start with waking up and getting up, which requires the bending of your knee and is one of the first movements your make to start you day. Your knee sees a lot of things like cabinets in your kitchen, the couch level in your house. Depending on your height your knee perspective may vary.
"Thit mé i laige" is one way of saying it! "Bhí mé gan aithne gan urlabhra" is a nice way of saying I was unconcious but i suppose it's not necessarily the same thing!!